select实现readonly
找了几个没几个能用.这个不错,简洁,可用.
<html><body><form method="get" action=""><select name="sel" onchange="this.value=3;"><option value='1'>1111</option><option value='2'>2222</option><option value='3'>3333</option><option value='4'>4444</option></select><input type="text"/><input type="submit" value="submit"/></form></body></html>
